Rain gutter



FIG. 1 is a perspective view of a rain gutter, showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a cross-sectional view thereof, taken along lines 6-6 of FIG. 4 .

The regular broken lines showing a roof and support board in FIG. 1 depict environmental matter and form no part of the claimed design. The remaining dot-dash broken lines represent a boundary of the design. 

CLAIM The ornamental design for a rain gutter, as shown and described. 